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        .cm-s-inner .cm-variable-2 {
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        /* open-sans-700italic - latin-ext_latin */
        
        html {
            font-size: 16px;
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        }
        
        body {
            font-family: "Open Sans", "Clear Sans", "Helvetica Neue", Helvetica, Arial, 'Segoe UI Emoji', sans-serif;
            color: rgb(51, 51, 51);
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        ol:first-child {
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    </style>
    <title>html常用代码</title>
</head>

<body class='typora-export os-windows'>
    <div class='typora-export-content'>
        <div id='write' class=''>
            <h1 id='html'><span>HTML</span></h1>
            <h3 id='body标签'><span>body标签</span></h3>
            <h4 id='1背景属性包括bgeolorbackground'><span>1.背景属性：包括：bgeolor，background</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th style='text-align:left;'><span>属性值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td style='text-align:left;'><span>body background-color:black</span></td>
                            <td><span>背景颜色</span></td>
                        </tr>
                        <tr>
                            <td style='text-align:left;'><span>body background-image:url()</span></td>
                            <td><span>背景图片</span></td>
                        </tr>
                        <tr>
                            <td style='text-align:left;'><span>body background-attachment:fixed</span></td>
                            <td><span>固定背景</span></td>
                        </tr>
                        <tr>
                            <td style='text-align:left;'><span>body background-repeat:repeat</span></td>
                            <td><span>重复排列-网页预设</span></td>
                        </tr>
                        <tr>
                            <td style='text-align:left;'><span>body background-repeat:no-repeat</span></td>
                            <td><span>不重复排列</span></td>
                        </tr>
                        <tr>
                            <td style='text-align:left;'><span>body background-repeat:repeat--x</span></td>
                            <td><span>在x轴重复排列</span></td>
                        </tr>
                        <tr>
                            <td style='text-align:left;'><span>body background-repeat:repeat--y</span></td>
                            <td><span>在y轴重复排列</span></td>
                        </tr>
                        <tr>
                            <td style='text-align:left;'><span>body background--position:90%,90%</span></td>
                            <td><span>背景图片x与y轴的位置</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='2文字属性包括textlinkalinkvlink'><span>2,文字属性：包括：text,link,alink,.vlink,</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>body text=&quot;red&quot;</span></td>
                            <td><span>字体颜色</span></td>
                        </tr>
                        <tr>
                            <td><span>body link=&quot;green&quot;</span></td>
                            <td><span>可链接文字的色彩</span></td>
                        </tr>
                        <tr>
                            <td><span>body alink=&quot;red&quot;</span></td>
                            <td><span>正被点击的可链接文字的色彩</span></td>
                        </tr>
                        <tr>
                            <td><span>body vlink=&quot;yello&quot;</span></td>
                            <td><span>己经点击（访问）过的可链接文字的色彩</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='3留白属性其中分为leftmargintopmargin'><span>3.留白属性:其中分为:leftmargin,topmargin </span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>body leftmargin=&quot;value&quot;</span></td>
                            <td><span>页面左侧的留白距离</span></td>
                        </tr>
                        <tr>
                            <td><span>body topmargin=&quot;value&quot;</span></td>
                            <td><span>页面顶部的留白距离</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <p><strong><span>注：value为长度值为数字色彩是用l6进制的红一绿一蓝(red-green-blue,RGB)值来表示。16进制的数码有：0,1,2,3,4,5,6,7,8,9，a,b,c,d,e,f.</span></strong>
            </p>
            <h4 id='4标注属性'><span>4.标注属性</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>class</span></td>
                            <td><span>classname</span></td>
                            <td><span>规定元素的类名(classname)</span></td>
                        </tr>
                        <tr>
                            <td><span>id</span></td>
                            <td><span>id</span></td>
                            <td><span>规定元素的唯一id</span></td>
                        </tr>
                        <tr>
                            <td><span>style</span></td>
                            <td><span>style_definition</span></td>
                            <td><span>规定元素的行内样式(inline style)</span></td>
                        </tr>
                        <tr>
                            <td><span>title</span></td>
                            <td><span>text</span></td>
                            <td><span>规定元素的额外信息（可在工具提示中显示）</span></td>
                        </tr>
                        <tr>
                            <td><span>dir</span></td>
                            <td><span>Itr</span><span>|</span><span>rtl</span></td>
                            <td><span>设置元素中内容的文本方向。</span></td>
                        </tr>
                        <tr>
                            <td><span>lang</span></td>
                            <td><span>language_code</span></td>
                            <td><span>设置元素中内容的语言代码。</span></td>
                        </tr>
                        <tr>
                            <td><span>xml:lang</span></td>
                            <td><span>language code</span></td>
                            <td><span>设置XHTML文档中元素内容的语言代码。</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h3 id='a标签'><span>a标签</span></h3>
            <h4 id='1可选的属性-1'><span>1.可选的属性</span></h4>
            <p><span>DTD指示此属性允许在哪种DTD中使用，S=Strict,T=Transitional,F=Frameset.</span></p>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                            <th><span>DTD</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>charset</span></td>
                            <td><span>字符集名称</span></td>
                            <td><span>规定目标URL的字符编码。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>coords</span></td>
                            <td><span>坐标</span></td>
                            <td><span>规定链接的坐标。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>href</span></td>
                            <td><span>URL</span></td>
                            <td><span>链接的目标URL。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>hreflang</span></td>
                            <td><span>IS0语言代码</span></td>
                            <td><span>规定目标URL的基准语言。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>name</span></td>
                            <td><span>section name</span></td>
                            <td><span>规定锚的名称。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>rel</span></td>
                            <td><span>text</span></td>
                            <td><span>规定当前文档与目标URL之间的关系。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>rev</span></td>
                            <td><span>text</span></td>
                            <td><span>规定目标URL与当前文档之间的关系。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>disable</span></td>
                            <td><span>ture</span><br><span>false</span></td>
                            <td><span>是否能设置或获取控件的状态</span></td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>ping</span></td>
                            <td><span>url</span></td>
                            <td><span>访问当前连接会ping一个地址</span></td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>shape</span></td>
                            <td><span>default</span><br><span>rect</span><br><span>circle</span><br><span>poly</span>
                            </td>
                            <td><span>规定链接的形状。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>target</span></td>
                            <td><span>_blank</span><br><span> _parent</span><br><span> _self</span><br><span>
                                    _top</span><br><span> _framename</span></td>
                            <td><span>在何处打开目标URL。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                        <tr>
                            <td><span>type</span></td>
                            <td><span>MIME编码类型</span></td>
                            <td><span>规定目标URL的MIME类型。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='2标准属性-1'><span>2.标准属性</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>class</span></td>
                            <td><span>classname</span></td>
                            <td><span>规定元素的类名(classname)</span></td>
                        </tr>
                        <tr>
                            <td><span>id</span></td>
                            <td><span>id</span></td>
                            <td><span>规定元素的唯一id</span></td>
                        </tr>
                        <tr>
                            <td><span>style</span></td>
                            <td><span>style_definition</span></td>
                            <td><span>规定元素的行内样式(inline style)</span></td>
                        </tr>
                        <tr>
                            <td><span>title</span></td>
                            <td><span>text</span></td>
                            <td><span>规定元素的额外信息（可在工具提示中显示）</span></td>
                        </tr>
                        <tr>
                            <td><span>dir</span></td>
                            <td><span>Itr</span><span>|</span><span>rtl</span></td>
                            <td><span>设置元素中内容的文本方向。</span></td>
                        </tr>
                        <tr>
                            <td><span>lang</span></td>
                            <td><span>language code</span></td>
                            <td><span>设置元素中内容的语言代码。</span></td>
                        </tr>
                        <tr>
                            <td><span>xml:lang</span></td>
                            <td><span>language_code</span></td>
                            <td><span>设置XHTML文档中元素内容的语言代码。</span></td>
                        </tr>
                        <tr>
                            <td><span>键盘属性</span></td>
                            <td>&nbsp;</td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>accesskey</span></td>
                            <td><span>character</span></td>
                            <td><span>设置访问元素的键盘快捷键。</span></td>
                        </tr>
                        <tr>
                            <td><span>tabindex</span></td>
                            <td><span>number</span></td>
                            <td><span>设置元素的Tab键控制次序。</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h3 id='p标签'><span>p标签</span></h3>
            <h4 id='1可选的属性-2'><span>1.可选的属性</span></h4>
            <p><span>DTD指示此属性允许在哪种DTD中使用，S=Strict,T=Transitional,F=Frameset.</span></p>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                            <th><span>DTD</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>align</span></td>
                            <td><span>left</span><br><span>right</span><br><span>center</span><br><span>justify</span>
                            </td>
                            <td><span>请使用样式取代它。规定段落中文本的对齐方式。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='2标准属性-2'><span>2.标准属性</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>class</span></td>
                            <td><span>classname</span></td>
                            <td><span>规定元素的类名(classname)</span></td>
                        </tr>
                        <tr>
                            <td><span>id</span></td>
                            <td><span>id</span></td>
                            <td><span>规定元素的唯一id</span></td>
                        </tr>
                        <tr>
                            <td><span>style</span></td>
                            <td><span>style_definition</span></td>
                            <td><span>规定元素的行内样式(inline style)</span></td>
                        </tr>
                        <tr>
                            <td><span>title</span></td>
                            <td><span>text</span></td>
                            <td><span>规定元素的额外信息（可在工具提示中显示）</span></td>
                        </tr>
                        <tr>
                            <td><span>dir</span></td>
                            <td><span>Itr</span><span>|</span><span>rtl</span></td>
                            <td><span>设置元素中内容的文本方向。</span></td>
                        </tr>
                        <tr>
                            <td><span>lang</span></td>
                            <td><span>language code</span></td>
                            <td><span>设置元素中内容的语言代码。</span></td>
                        </tr>
                        <tr>
                            <td><span>xml:lang</span></td>
                            <td><span>language_code</span></td>
                            <td><span>设置XHTML文档中元素内容的语言代码。</span></td>
                        </tr>
                        <tr>
                            <td><span>键盘属性</span></td>
                            <td>&nbsp;</td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>accesskey</span></td>
                            <td><span>character</span></td>
                            <td><span>设置访问元素的键盘快捷键。</span></td>
                        </tr>
                        <tr>
                            <td><span>tabindex</span></td>
                            <td><span>number</span></td>
                            <td><span>设置元素的Tab键控制次序。</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h3 id='img标签'><span>img标签</span></h3>
            <h4 id='1必需的属性'><span>1.必需的属性</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>alt</span></td>
                            <td><span>text</span></td>
                            <td><span>规定图像的替代文本。</span></td>
                        </tr>
                        <tr>
                            <td><span>src</span></td>
                            <td><span>URL</span></td>
                            <td><span>规定显示图像的URL。</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='2可选的属性'><span>2.可选的属性</span></h4>
            <p><span>DTD指示此属性允许在哪种DTD中使用，S=Strict,T=Transitional,F=Frameset.</span></p>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                            <th><span>DTD</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>align</span></td>
                            <td><span>top</span><br><span>bottom</span><br><span>middle</span><br><span>left</span><br><span>right</span>
                            </td>
                            <td><span>规定如何根据周围的文本来排列图像。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                        <tr>
                            <td><span>border</span></td>
                            <td><span>pixels</span></td>
                            <td><span>定义图像周围的边框。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                        <tr>
                            <td><span>height</span></td>
                            <td><span>pixels</span><br><span>%</span></td>
                            <td><span>定义图像的高度。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>width</span></td>
                            <td><span>pixels</span><br><span>%</span></td>
                            <td><span>设置图像的宽度。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>hspace</span></td>
                            <td><span>pixels</span></td>
                            <td><span>定义图像左侧和右侧的空白。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                        <tr>
                            <td><span>ismap</span></td>
                            <td><span>URL</span></td>
                            <td><span>将图像定义为服务器端图像映射。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>longdesc</span></td>
                            <td><span>URL</span></td>
                            <td><span>指向包含长的图像描述文档的URL。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>usemap</span></td>
                            <td><span>URL</span></td>
                            <td><span>将图像定义为客户器端图像映射。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>vspace</span></td>
                            <td><span>pixels</span></td>
                            <td><span>定义图像顶部和底部的空白。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='3标准属性'><span>3.标准属性</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>class</span></td>
                            <td><span>classname</span></td>
                            <td><span>规定元素的类名(classname)</span></td>
                        </tr>
                        <tr>
                            <td><span>id</span></td>
                            <td><span>id</span></td>
                            <td><span>规定元素的唯一id</span></td>
                        </tr>
                        <tr>
                            <td><span>style</span></td>
                            <td><span>style_definition</span></td>
                            <td><span>规定元素的行内样式(inline style)</span></td>
                        </tr>
                        <tr>
                            <td><span>title</span></td>
                            <td><span>text</span></td>
                            <td><span>规定元素的额外信息（可在工具提示中显示）</span></td>
                        </tr>
                        <tr>
                            <td><span>dir</span></td>
                            <td><span>Itr</span><span>|</span><span>rtl</span></td>
                            <td><span>设置元素中内容的文本方向。</span></td>
                        </tr>
                        <tr>
                            <td><span>lang</span></td>
                            <td><span>language code</span></td>
                            <td><span>设置元素中内容的语言代码。</span></td>
                        </tr>
                        <tr>
                            <td><span>xml:lang</span></td>
                            <td><span>language_code</span></td>
                            <td><span>设置XHTML文档中元素内容的语言代码。</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h3 id='table标签------表格'><code>table</code><span>标签——表格</span></h3>
            <p><strong><span>注意：一个 dl 可以有多个 dt。一个 dt 可以有多个 dd，但一个 dd 不会出现跟着多个 dt</span></strong></p>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>元素</span></th>
                            <th><span>作用</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><strong><span>caption</span></strong><span>：</span></td>
                            <td><span>用于定义表格标题，内容居中对齐。</span><strong><span>caption 标签必须紧随 table
                                        标签之后，并且一个表格只能有一个标题，默认情况下，标题都是位于表格的第一行。</span></strong></td>
                        </tr>
                        <tr>
                            <td><strong><span>tr</span></strong><span>：</span></td>
                            <td><span>用于定义表格中的行，必须嵌套在 table 标签中，在表格中有几组 tr ，就表示有多少行。</span></td>
                        </tr>
                        <tr>
                            <td><strong><span>td</span></strong><span>：</span></td>
                            <td><span>用于定义表格中的单元格，必须嵌套在 tr 标签中，一组 tr 中包含几对 td，就表示该行有多少个单元格。</span></td>
                        </tr>
                        <tr>
                            <td><strong><span>th：</span></strong></td>
                            <td><span>上面说到的 td 标签准确来说叫表行单元格，在 HTML 中，还有一种单元格，那就是表头单元格 ，用 th 标签标示。th 是英文 table
                                    header（表头单元格）的缩写</span></td>
                        </tr>
                        <tr>
                            <td><span>表头 </span><code>thead</code><span> 表身
                                </span><code>tbody</code><span>表脚</span><code>tfoot</code></td>
                            <td><span>使用这三个标签，不仅可以让表格的语义更好，结构更清晰，也可以让我们的代码更具有可读性和可维护性，当然，也方便我们分块来控制表格的 CSS 样式。</span>
                            </td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='1可选的属性-3'><span>1.可选的属性</span></h4>
            <p><span>DTD指示此属性允许在哪种DTD中使用，S=Strict,T=Transitional,F=Frameset.</span></p>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                            <th><span>DTD</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>align</span></td>
                            <td><span>left</span><br><span>center</span><br><span>right</span></td>
                            <td><strong><span>不赞成使用。</span></strong><span>请使用样式代替。规定表格相对周围元素的对齐方式。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                        <tr>
                            <td><span>bgcolor</span></td>
                            <td><span>rgb(x,x,x)</span><br><span>#XXXXXX</span><br><span>colorname</span></td>
                            <td><strong><span>不赞成使用。</span></strong><span>请使用样式代替。规定表格的背景颜色。</span></td>
                            <td><span>TF</span></td>
                        </tr>
                        <tr>
                            <td><span>border</span></td>
                            <td><span>pixels</span></td>
                            <td><span>规定表格边框的宽度。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>cellpadding</span></td>
                            <td><span>pixels</span><br><span>%</span></td>
                            <td><span>规定单元边沿与其内容之间的空白。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>cellspacing</span></td>
                            <td><span>pixels</span><br><span>%</span></td>
                            <td><span>规定单元格之间的空白。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>frame</span></td>
                            <td><span>void</span><br><span>above</span><br><span>below</span><br><span>hsides</span><br><span>Ihs</span><br><span>rhs</span><br><span>vsides</span><br><span>box</span><br><span>border</span>
                            </td>
                            <td><span>规定外侧边框的哪个部分是可见的。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>rules</span></td>
                            <td><span>none</span><br><span>groups</span><br><span>rows</span><br><span>cols</span><br><span>all</span>
                            </td>
                            <td><span>规定内侧边框的哪个部分是可见的。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>summary</span></td>
                            <td><span>text</span></td>
                            <td><span>规定表格的摘要。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>width</span></td>
                            <td><span>%</span><br><span>pixels</span></td>
                            <td><span>规定表格的宽度。</span></td>
                            <td><span>STF</span></td>
                        </tr>
                        <tr>
                            <td><span>cols</span></td>
                            <td><span>number</span></td>
                            <td><span>指定表格的栏数</span></td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>background</span></td>
                            <td><span>URL</span></td>
                            <td><span>背景图片的URL=就是路径网址</span></td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>borderclorlight</span></td>
                            <td><span>rgb(x,x,x)</span><br><span>#XXXXXX</span><br><span>colorname</span></td>
                            <td><span>定表格亮边框的颜色</span></td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>borderclordark</span></td>
                            <td><span>rgb(x,x,x)</span><br><span>#XXXXXX</span><br><span>colorname</span></td>
                            <td><span>设定表格暗边框的颜色</span></td>
                            <td>&nbsp;</td>
                        </tr>
                        <tr>
                            <td><span>borderclo</span></td>
                            <td><span>rgb(x,x,x)</span><br><span>#XXXXXX</span><br><span>colorname</span></td>
                            <td><span>设定表格边框的颜色</span></td>
                            <td>&nbsp;</td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='2标准属性-3'><span>2.标准属性</span></h4>
            <figure>
                <table>
                    <thead>
                        <tr>
                            <th><span>属性</span></th>
                            <th><span>值</span></th>
                            <th><span>描述</span></th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td><span>class</span></td>
                            <td><span>classname</span></td>
                            <td><span>规定元素的类名(classname)</span></td>
                        </tr>
                        <tr>
                            <td><span>id</span></td>
                            <td><span>id</span></td>
                            <td><span>规定元素的唯一id</span></td>
                        </tr>
                        <tr>
                            <td><span>style</span></td>
                            <td><span>style_definition</span></td>
                            <td><span>规定元素的行内样式(inline style)</span></td>
                        </tr>
                        <tr>
                            <td><span>title</span></td>
                            <td><span>text</span></td>
                            <td><span>规定元素的额外信息（可在工具提示中显示）</span></td>
                        </tr>
                        <tr>
                            <td><span>dir</span></td>
                            <td><span>Itr</span><span>|</span><span>rtl</span></td>
                            <td><span>设置元素中内容的文本方向。</span></td>
                        </tr>
                        <tr>
                            <td><span>lang</span></td>
                            <td><span>language code</span></td>
                            <td><span>设置元素中内容的语言代码。</span></td>
                        </tr>
                        <tr>
                            <td><span>xml:lang</span></td>
                            <td><span>language_code</span></td>
                            <td><span>设置XHTML文档中元素内容的语言代码。</span></td>
                        </tr>
                    </tbody>
                </table>
            </figure>
            <h4 id='3行合并-rowspan列合并-colspan'><span>3.行合并 rowspan、列合并 colspan</span></h4>
            <pre class="md-fences md-end-block ty-contain-cm modeLoaded" spellcheck="false" lang="html" style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 7.92px; left: 8px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">table</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        </div>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">tr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span>123<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span>123<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span>123<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">tr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">tr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span> <span class="cm-attribute">rowspan</span>=<span class="cm-string">"2"</span><span class="cm-tag cm-bracket">&gt;</span>abc<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span>abc<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span>abc<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">tr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">tr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span>一二三<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span>一二三<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">td</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">    </span><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">tr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">table</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
    </div>
    </div>
    </div>
    </div>
    </div>
    <div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 317px;"></div>
    <div class="CodeMirror-gutters" style="display: none; height: 317px;"></div>
    </div>
    </div>
    </pre>
    <table>
        <tbody>
            <tr>
                <td>123</td>
                <td>123</td>
                <td>123</td>
            </tr>
            <tr>
                <td rowspan="2">abc</td>
                <td>abc</td>
                <td>abc</td>
            </tr>
            <tr>
                <td>一二三</td>
                <td>一二三</td>
            </tr>
        </tbody>
    </table>
    <p>&nbsp;</p>
    <h1><span> </span></h1>
    <h3 id='列表oluldl）'><span>列表（ol、ul、dl）</span></h3>
    <figure>
        <table>
            <thead>
                <tr>
                    <th><span>ol type=&quot;属性值&quot;</span></th>
                    <th><span>列表符号</span></th>
                    <th><span>ul type=&quot;属性值&quot;</span></th>
                    <th><span>列表符号</span></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td><span>1</span></td>
                    <td><span>阿拉伯数字1、2、3······</span></td>
                    <td><span>disc</span></td>
                    <td><span>实心圆</span></td>
                </tr>
                <tr>
                    <td><span>a</span></td>
                    <td><span>小写英文字母a、b、c·······</span></td>
                    <td><span>circle</span></td>
                    <td><span>空心圆</span></td>
                </tr>
                <tr>
                    <td><span>A</span></td>
                    <td><span>大小英文字母A、B、C·······</span></td>
                    <td><span>square</span></td>
                    <td><span>正方形</span></td>
                </tr>
                <tr>
                    <td><span>i</span></td>
                    <td><span>小写罗马数字i、ii、iii·······</span></td>
                    <td>&nbsp;</td>
                    <td>&nbsp;</td>
                </tr>
                <tr>
                    <td><span>I</span></td>
                    <td><span>大写罗马数字I、II、III·······</span></td>
                    <td>&nbsp;</td>
                    <td>&nbsp;</td>
                </tr>
            </tbody>
        </table>
    </figure>
    <pre class="md-fences md-end-block ty-contain-cm modeLoaded" spellcheck="false" lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 7.92px; left: 8px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre>
    </div>
    <div class="CodeMirror-measure"></div>
    <div style="position: relative; z-index: 1;"></div>
    <div class="CodeMirror-code" role="presentation" style="">
        <div class="CodeMirror-activeline" style="position: relative;">
            <div class="CodeMirror-activeline-background CodeMirror-linebackground"></div>
            <div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div>
            <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">ul</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        </div>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span>无序列表<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span>无序列表<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">ul</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">ol</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span>有序列表<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span>有序列表<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">li</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">ol</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
    </div>
    </div>
    </div>
    </div>
    </div>
    <div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 159px;"></div>
    <div class="CodeMirror-gutters" style="display: none; height: 159px;"></div>
    </div>
    </div>
    </pre>
    <h3 id='input标签------表单输入框单选框）'><span>input标签——表单（输入框，单选框）</span></h3>
    <p><span>通常使用</span><code>form</code><span>包起来使用</span></p>
    <h4 id='1可选的属性-4'><span>1.可选的属性</span></h4>
    <p><span>DTD指示此属性允许在哪种DTD中使用，S=Strict,T=Transitional,F=Frameset.</span></p>
    <figure>
        <table>
            <thead>
                <tr>
                    <th><span>属性</span></th>
                    <th><span>值</span></th>
                    <th><span>描述</span></th>
                    <th><span>DTD</span></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td><span>accept</span></td>
                    <td><span>mime_type</span></td>
                    <td><span>规定通过文件上传来提交的文件的类型。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>align</span></td>
                    <td><span>left</span><br><span>right</span><br><span>top</span><br><span>middle</span><br><span>bottom</span>
                    </td>
                    <td><span>不赞成使用。规定图像输入的对齐方式。</span></td>
                    <td><span>TF</span></td>
                </tr>
                <tr>
                    <td><span>alt</span></td>
                    <td><span>text</span></td>
                    <td><span>定义图像输入的替代文本。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>checked</span></td>
                    <td><span>checked</span></td>
                    <td><span>规定此input元素首次加载时应当被选中。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>disabled</span></td>
                    <td><span>disabled</span></td>
                    <td><span>当input元素加载时禁用此元素。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>maxlength</span></td>
                    <td><span>number</span></td>
                    <td><span>规定输入字段中的字符的最大长度。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>name</span></td>
                    <td><span>field_name</span></td>
                    <td><span>定义input元素的名称。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>readonly</span></td>
                    <td><span>readonly</span></td>
                    <td><span>规定输入字段为只读。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>size</span></td>
                    <td><span>number_of _char</span></td>
                    <td><span>定义输入字段的宽度。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>src</span></td>
                    <td><span>URL</span></td>
                    <td><span>定义以提交按钮形式显示的图像的URL。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>type</span></td>
                    <td><span>button</span><br><span>checkbox</span><br><span>file</span><br><span>hidden</span><br><span>image</span><br><span>password</span><br><span>radio</span><br><span>reset</span><br><span>submit</span><br><span>text</span>
                    </td>
                    <td><span>规定input元素的类型。</span></td>
                    <td><span>STF</span></td>
                </tr>
                <tr>
                    <td><span>value</span></td>
                    <td><span>value</span></td>
                    <td><span>设置默认情况下文本框显示的文字(默认值)</span></td>
                    <td><span>STF</span></td>
                </tr>
            </tbody>
        </table>
    </figure>
    <figure>
        <table>
            <thead>
                <tr>
                    <th style='text-align:left;'><span>type=&quot;属性值&quot;</span></th>
                    <th style='text-align:left;'><span>解释说明（作用)</span></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td style='text-align:left;'><span>text</span></td>
                    <td style='text-align:left;'><span>单行文本框</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>password</span></td>
                    <td style='text-align:left;'><span>密码文本框</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>radio</span></td>
                    <td style='text-align:left;'><span>单选框</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>checkbox</span></td>
                    <td style='text-align:left;'><span>多选框</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>button</span></td>
                    <td style='text-align:left;'><span>普通按钮</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>submit</span></td>
                    <td style='text-align:left;'><span>提交按钮</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>reset</span></td>
                    <td style='text-align:left;'><span>重置按钮</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>file</span></td>
                    <td style='text-align:left;'><span>文件上传</span></td>
                </tr>
                <tr>
                    <td style='text-align:left;'><span>date(HTML5新增元素)</span></td>
                    <td style='text-align:left;'><span>预期的日期格式</span></td>
                </tr>
            </tbody>
        </table>
    </figure>
    <h4 id='2标准属性-4'><span>2.标准属性</span></h4>
    <figure>
        <table>
            <thead>
                <tr>
                    <th><span>属性</span></th>
                    <th><span>值</span></th>
                    <th><span>描述</span></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td><span>class</span></td>
                    <td><span>classname</span></td>
                    <td><span>规定元素的类名(classname)</span></td>
                </tr>
                <tr>
                    <td><span>id</span></td>
                    <td><span>id</span></td>
                    <td><span>规定元素的唯一id</span></td>
                </tr>
                <tr>
                    <td><span>style</span></td>
                    <td><span>style_definition</span></td>
                    <td><span>规定元素的行内样式(inline style)</span></td>
                </tr>
                <tr>
                    <td><span>title</span></td>
                    <td><span>text</span></td>
                    <td><span>规定元素的额外信息（可在工具提示中显示）</span></td>
                </tr>
                <tr>
                    <td><span>dir</span></td>
                    <td><span>Itr</span><span>|</span><span>rtl</span></td>
                    <td><span>设置元素中内容的文本方向。</span></td>
                </tr>
                <tr>
                    <td><span>lang</span></td>
                    <td><span>language code</span></td>
                    <td><span>设置元素中内容的语言代码。</span></td>
                </tr>
                <tr>
                    <td><span>xml:lang</span></td>
                    <td><span>language_code</span></td>
                    <td><span>设置XHTML文档中元素内容的语言代码。</span></td>
                </tr>
            </tbody>
        </table>
    </figure>
    <pre class="md-fences md-end-block ty-contain-cm modeLoaded" spellcheck="false" lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 7.92px; left: 8px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre>
    </div>
    <div class="CodeMirror-measure"></div>
    <div style="position: relative; z-index: 1;"></div>
    <div class="CodeMirror-code" role="presentation" style="">
        <div class="CodeMirror-activeline" style="position: relative;">
            <div class="CodeMirror-activeline-background CodeMirror-linebackground"></div>
            <div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div>
            <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">注：<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span><span class="cm-attribute">type</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        </div>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">文本框<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">maxlength</span>=<span class="cm-string">""</span> <span class="cm-attribute">size</span>=<span class="cm-string">""</span> <span class="cm-attribute">value</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">密码框<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"password"</span> <span class="cm-attribute">maxlength</span>=<span class="cm-string">""</span> <span class="cm-attribute">size</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">插入文件域<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span><span class="cm-attribute">type</span>=<span class="cm-string">"file"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">复选框<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"checkbox"</span> <span class="cm-attribute">id</span>=<span class="cm-string">""</span> <span class="cm-attribute">value</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">单选按钮<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"radio"</span> <span class="cm-attribute">id</span>=<span class="cm-string">""</span> <span class="cm-attribute">value</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">标准按钮<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"button"</span><span class="cm-attribute">id</span>=<span class="cm-string">""</span> <span class="cm-attribute">value</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">提交按钮<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span><span class="cm-string cm-error">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"submit"</span> <span class="cm-attribute">value</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">重置按钮<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"reset"</span> <span class="cm-attribute">value</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">插入图像域<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"image"</span> <span class="cm-attribute">src</span>=<span class="cm-string">""</span> <span class="cm-attribute">width</span>=<span class="cm-string">""</span> <span class="cm-attribute">height</span>=<span class="cm-string">""</span> <span class="cm-attribute">border</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">文字域<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">textarea</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">rows</span>=<span class="cm-string">"3"</span> <span class="cm-attribute">cols</span>=<span class="cm-string">"2"</span> <span class="cm-attribute">id</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;&lt;/</span><span class="cm-tag">textarea</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">插入隐藏域<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">name</span>=<span class="cm-string">""</span> <span class="cm-attribute">type</span>=<span class="cm-string">"hidden"</span> <span class="cm-attribute">value</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
    </div>
    </div>
    </div>
    </div>
    </div>
    <div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 238px;"></div>
    <div class="CodeMirror-gutters" style="display: none; height: 238px;"></div>
    </div>
    </div>
    </pre>
    <h3 id='form标签'><span>form标签</span></h3>
    <figure>
        <table>
            <thead>
                <tr>
                    <th><span>属性值</span></th>
                    <th><span>说明</span></th>
                    <th style='text-align:left;'><span>作用</span></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td><span>action</span></td>
                    <td><span>提交地址</span></td>
                    <td style='text-align:left;'><span>在表单收集到信息后，需要将信息传递给服务器进行处理,，action 属性用于指定接收并处理表单数据的服务器程序的 url
                            地址</span></td>
                </tr>
                <tr>
                    <td><span>method</span></td>
                    <td><span>提交方式</span></td>
                    <td style='text-align:left;'><span>用于设置表单数据使用哪一种http提交方式,其取值有两个get 的安全性较差，post 安全性较好,在实际开发中我们都使用
                            post 方式</span></td>
                </tr>
                <tr>
                    <td><span>name</span></td>
                    <td><span>表单名称</span></td>
                    <td style='text-align:left;'><span>用于指定表单的名称，以区分同一个页面中的多个表单</span></td>
                </tr>
                <tr>
                    <td><span>target</span></td>
                    <td><span>打开方式</span></td>
                    <td style='text-align:left;'><span>在 form 标签中,target 属性与 a 标签的 target
                            属性是一样的,都是用来指定窗口的打开方式,所以一般情况下,我们也只会用到 _blank 这一个属性值</span></td>
                </tr>
                <tr>
                    <td><span>enctype</span></td>
                    <td><span>编码方式</span></td>
                    <td style='text-align:left;'><span>enctype 的中文就是编码的意思，所以 enctype
                            属性用于指定表单数据提交的编码方式，一般我们不需要去设置，除非你需要用到上传文件的功能</span></td>
                </tr>
            </tbody>
        </table>
    </figure>
    <h3 id='html5新增标签'><span>HTML5新增标签</span></h3>
    <figure>
        <table>
            <thead>
                <tr>
                    <th><span>元素</span></th>
                    <th><span>作用</span></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td><span>nav</span></td>
                    <td><span>导航栏链接</span></td>
                </tr>
                <tr>
                    <td><span>header</span></td>
                    <td><span>它可以为父级标签呈现简介信息或者导航链接，适用于那些在多个页面顶部重复出现的内容</span></td>
                </tr>
                <tr>
                    <td><span>main</span></td>
                    <td><span>标签用于呈现网页的主体内容，且每个页面应只有一个</span></td>
                </tr>
                <tr>
                    <td><span>footer</span></td>
                    <td><span>它位于页面底部，用于呈现版权信息或者相关文档链接</span></td>
                </tr>
                <tr>
                    <td><audio src=""></audio></td>
                    <td><span>用于呈现音频内容或音频流，它也具有语义化特性</span></td>
                </tr>
                <tr>
                    <td>
                        <source src="">
                    </td>
                    <td><span>当放多个音频内容或音频流时配合audio使用</span></td>
                </tr>
                <tr>
                    <td><span>figure</span></td>
                    <td><span>元素提高图表的可访问性</span></td>
                </tr>
                <tr>
                    <td><span>figcaption</span></td>
                    <td><span>注意 </span><code>figcaption</code><span> 包含在 </span><code>figure</code><span>
                            标签中，并且可以与其他标签组合使用</span></td>
                </tr>
                <tr>
                    <td><span>fieldset</span></td>
                    <td><span>标签包裹整组单选按钮，实现这个功能。 它经常使用 </span><code>legend</code><span> 标签来提供分组的描述，以便屏幕阅读器用户会阅读
                        </span><code>fieldset</code><span> 元素中的每个选项。当选项的含义很明确时，如“性别选择”，</span></td>
                </tr>
                <tr>
                    <td><span>legend</span></td>
                    <td><span>配合</span><code>fieldset</code><span>使用，提供分组的描述</span></td>
                </tr>
                <tr>
                    <td><label for=""></label></td>
                    <td><code>label</code><span> 标签的 </span><code>for</code><span> 属性将标签与表单组件绑定；同时，屏幕阅读器也会读取
                        </span><code>for</code><span> 属性的属性值</span></td>
                </tr>
            </tbody>
        </table>
    </figure>
    <pre class="md-fences md-end-block ty-contain-cm modeLoaded" spellcheck="false" lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 7.92px; left: 8px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre>
    </div>
    <div class="CodeMirror-measure"></div>
    <div style="position: relative; z-index: 1;"></div>
    <div class="CodeMirror-code" role="presentation">
        <div class="CodeMirror-activeline" style="position: relative;">
            <div class="CodeMirror-activeline-background CodeMirror-linebackground"></div>
            <div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div>
            <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">form</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        </div>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"name"</span><span class="cm-tag cm-bracket">&gt;</span>Name:<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"name"</span> <span class="cm-attribute">name</span>=<span class="cm-string">"name"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
        <pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">form</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
    </div>
    </div>
    </div>
    </div>
    </div>
    <div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 79px;"></div>
    <div class="CodeMirror-gutters" style="display: none; height: 79px;"></div>
    </div>
    </div>
    </pre>
    <p>&nbsp;</p>
    </div>
    </div>
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